Coding for Beginners - Duplicate Encoder - Code Wars

This is a step by step on how to solve the duplicate encoder challenge on code wars. Can be used for other things as well. Goes over basic for loop, storing new keys in objects using a function, the map syntax, and more.

[Bobo]

Thanks for the video, i'm a begginer too and having this explained in such a way is amazing, most of the material i found on this spent hours talking about stuff that is way to advanced for me to understand yet.

[Татьяна-цко]

Thank you for not just coding, but explaining. I am a newBe. I found a lot of solutions, but could not understand "why" and "what" they were doing. Thanks again.

[adarshtiwari]

Great I am trying to solve this one with the help of arrays instead of objects!

[meligutierrez]

Hey, I didn't understand in what part of your code or how do you check if a character appears twice because your if only checks if the object is undefined (? Thanks for the help!

[edmondavetisyan]

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